Nucleon correlations and the structure of Zn413071

Bottoni, S.; Zhu, S.; Janssens, R. V. F.; Carpenter, M. P.; Tsunoda, Y.; Otsuka, T.; Macchiavelli, A. O.; Cline, D.; Wu, C. Y.; Ayangeakaa, A. D.; Bucher, B.; Buckner, M. Q.; Campbell, C. M.; Chiara, C. J.; Crawford, H. L.; Cromaz, M.; David, H. M.; Fallon, P.; Gade, A.; Greene, J. P.; Harker, J.; Hayes, A. B.; Hoffman, C. R.; Kay, B. P.; Korichi, A.; Lauritsen, T.; Sethi, J.; Seweryniak, D.; Walters, W. B.; Weisshaar, D.; Wiens, A.

doi:10.1016/j.physletb.2017.11.003

Title: Nucleon correlations and the structure of ${}_{30}^{71}{Zn}_{41}$

Journal Article · Mon Nov 06 00:00:00 EST 2017 · Physics Letters. B

DOI:https://doi.org/10.1016/j.physletb.2017.11.003· OSTI ID:1407453

; Zhu, S.; Janssens, R. V. F.; Carpenter, M. P.; Tsunoda, Y.; Otsuka, T.; Macchiavelli, A. O.; Cline, D.; Wu, C. Y.; Ayangeakaa, A. D.; Bucher, B.; Buckner, M. Q.; Campbell, C. M.; Chiara, C. J.; Crawford, H. L.; Cromaz, M.; David, H. M.; Fallon, P.; Gade, A.; Greene, J. P. more »

Here, the structure of ⁷¹Zn was investigated by one-neutron transfer and heavy-ion induced complex (deep-inelastic) reactions using the GRETINA-CHICO2 and the Gammasphere setups, respectively. The observed inversion between the 9/2⁺ and 1/2^– states is explained in terms of the role of neutron pairing correlations. Non-collective sequences of levels were delineated above the 9/2⁺ isomeric state. These are interpreted as being associated with a modest oblate deformation in the framework of Monte-Carlo shell-model calculations carried out with the A3DA-m Hamiltonian in the pfg_9/2d_5/2 valence space. Similarities with the structure of ⁶⁸₂₈Ni₄₀ were observed and the shape-coexistence mechanism in the N = 40 region of neutron-rich nuclei is discussed in terms of the so-called Type-II shell evolution, with an emphasis on proton–neutron correlations between valence nucleons, especially those involving the shape-driving g_9/2 neutron orbital.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); University of North Carolina, Chapel Hill, NC (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; National Science Foundation (NSF); RIKEN Center for Computational Science (R-CCS), Hyogo (Japan); Ministry of Education, Culture, Sports, Science and Technology (MEXT) (Japan); Joint Inst. for Computational Fundamental Science (JICFuS) (Japan)

Grant/Contract Number:: AC02-05CH11231; AC02-06CH11357; AC52-07NA27344; FG02-94ER40834; FG02-08ER41556; PHY-1102511; hp150224; hp160211; hp170230; FG02-97ER41041; FG02-97ER41033

OSTI ID:: 1407453

Alternate ID(s):: OSTI ID: 1410060; OSTI ID: 1422393; OSTI ID: 1433108; OSTI ID: 1658911; OSTI ID: 1658935

Report Number(s):: LLNL-JRNL-736652; S037026931730895X; PII: S037026931730895X

Journal Information:: Physics Letters. B, Journal Name: Physics Letters. B Vol. 775 Journal Issue: C; ISSN 0370-2693

Publisher:: ElsevierCopyright Statement

Country of Publication:: Netherlands

Language:: English

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Cited by: 1 work

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